[PATCH v3 3/4] cpufreq: Add strict_target to struct cpufreq_policy

From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
	Zhang Rui <rui.zhang@intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Doug Smythies <dsmythies@telus.net>
Subject: [PATCH v3 3/4] cpufreq: Add strict_target to struct cpufreq_policy
Date: Tue, 10 Nov 2020 18:26:37 +0100	[thread overview]
Message-ID: <17647050.Bfk6z5ThJy@kreacher> (raw)
In-Reply-To: <11312387.r5AVKgp8zO@kreacher>

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Add a new field to be set when the CPUFREQ_GOV_STRICT_TARGET flag is
set for the current governor to struct cpufreq_policy, so that the
drivers needing to check CPUFREQ_GOV_STRICT_TARGET do not have to
access the governor object during every frequency transition.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/cpufreq.c |    2 ++
 include/linux/cpufreq.h   |    6 ++++++
 2 files changed, 8 insertions(+)

Index: linux-pm/drivers/cpufreq/cpufreq.c
===================================================================

--- linux-pm.orig/drivers/cpufreq/cpufreq.c
+++ linux-pm/drivers/cpufreq/cpufreq.c
@@ -2280,6 +2280,8 @@ static int cpufreq_init_governor(struct
 		}
 	}
 
+	policy->strict_target = !!(policy->governor->flags & CPUFREQ_GOV_STRICT_TARGET);
+
 	return 0;
 }
 
Index: linux-pm/include/linux/cpufreq.h
===================================================================
--- linux-pm.orig/include/linux/cpufreq.h
+++ linux-pm/include/linux/cpufreq.h
@@ -109,6 +109,12 @@ struct cpufreq_policy {
 	bool			fast_switch_enabled;
 
 	/*
+	 * Set if the CPUFREQ_GOV_STRICT_TARGET flag is set for the current
+	 * governor.
+	 */
+	bool			strict_target;
+
+	/*
 	 * Preferred average time interval between consecutive invocations of
 	 * the driver to set the frequency for this policy.  To be set by the
 	 * scaling driver (0, which is the default, means no preference).



